Smith s forge



AMOS BISSEY, OF TINICUM TOWNSHIP, BUCKS COUNTY, PENNSYLVANIA,

SMITHS FORGE.

Specification of Letters Patent No. 803, dated June 23, 1838.

To all whom it may concern.'

Be it lmown that I, AMos BIssnY, of

i Tinicum township, in the county of Bucks and Sta-te of Pennsylvania,have invented a newY and useful Improvement in Smiths Forges, called ThePerpetual Smiths Fire, which is described as follows7 reference beinghad to the annexed drawings of the same, making part of thisspecification.

The nature of my invention consists in constructing a cast iron box AFigure 1 whose figure is that of a frustum of a pyramid inverted, havinga grate B for anthracite or other coal at the upper or larger end and aslide C for `opening or closing the draft at the lower or smaller end.This box is built in the brick work of the forge in any convenient placewith its large end containing the grate a few inches below the surfaceof the forge-thus forming' a space for the coal which rests upon thegrate. In the side of the boX is a round aperture D to admit the twyerof the bellows for creating the blast. A hood E, Fig. 2 is constructedofvsheet iron to be placed over the box and grate for increasing thedraft when the fire is to be kept up without the aid of the blast. Thisis used only when the blast is not used, in which case the slide isdrawn out (to create a draft under the grate) by means of a long handleF Fig. l, the slide moving in grooves or channels in the side of thebox.

To use this .improvement the slide must be inserted. Anthracite or othercoal and combustibles must be placed upon the grate and ignited 'and theblast set in operation which soon iills the boX with air which risesthrough the grate and supplies the fire. The iron to be heated is theninserted into the fire in the usual manner. When it is desired to keepup the fire without the aid of the blast the hood must be put over thegrate and the slide withdrawnthe draft from below and through the box,grate and hood will then be sufiicientwithout the blast.

By this improvement the twyer or tew'-V iron is not liable to be burntout and de-J stroyed Anthracite or other coal` Vcan be used andthe firekept up perpetually and the grate is also prevented from burning out bythe air below it in the box.

This improvement has already been tested and found to answer well anditwill no doubt soon be generally used instead of the presentconstruction of forges in which anthracite coal cannot be used.

I do not claim the constructing of a cast Y iron or other boX7 coveredbya grate, and

receiving the blast through an opening beow said grate, this having beenbefore used ut The invention claimed anddesired to be secured by LettersPatent consists in Constructing such a box and placing it in.

the bottom of the forge in combination with a grate at top and a slideat bottom and an aperture in the side below the grate for the tew ironsintroduced through said aperture for makingthe blast in ignitinganthracite or other coal and keeping up a perpetual fire by withdrawingthe slide in the bottoms of the boX and putting a hood over the fire toincrease the draft in the manner before described cryin any other modeconstructed on similar principles. p i

AMOS BISSEY.

Witnesses: WM. I. ELLIOT,

EDMUND MAHER. Y

